Thứ Hai, 29 tháng 8, 2016

Collection of tigers facts

Here is collection of tigers facts, information and photos. Let's see:

Kết quả hình ảnh cho tiger facts

Basic information

Type: Mammal
Diet: Carnivore
Life span: 10-15 years
Size: Head and body, 1.5 to 1.8 m; tail, 0.6 to 0.9 m
Weight: 109 to 227 kg
Habitat: from the Siberian taiga to open grasslands and tropical mangrove swamps.
Range: Bengal Tiger is most numerous in the Sundarbans region of India and Bangladesh. It is also found in northern and central India and in Myanmar (formerly Burma) and Nepal.
Scientific name: Panthera tigris

Diet

Tigers mainly eat ambar deer, wild pigs, water buffalo and antelope. Tigers are also known to hunt sloth bears, dogs, leopards, crocodiles and pythons as well as monkeys and hares. Old and injured tigers have been known to attack humans and domestic cattle.

Population

In the early 1900s, there were around 100,000 tigers throughout their range. Today, an estimated total of around 3,000-4,500 exist in the wild. Below is a breakdown of tiger numbers by subspecies.
  1. Bengal tiger: Less than 2,000
  2. Indochinese tiger: 750-1,300
  3. Siberian tiger: Around 450
  4. Sumatran tiger: 400-500
  5. Malayan tiger: 600-800
  6. South Chinese tiger: Extinct in the wild
  7. Caspian tiger: Extinct
  8. Javan tiger: Extinct
  9. Bali tiger: Extinct
Range

Historic tiger range ran from Turkey through South and Southeast Asia to the far eastern shores of the continent. Today, they are only found in South and Southeast Asia, China and the Russian Far East.
Also see elephant facts

Behavior

Tigers occupy a variety of habitats from tropical forests, evergreen forests, woodlands and mangrove swamps to grasslands,savannah and rocky country. They are mostly nocturnal (more active at night) and are ambush predators that rely on the camouflage their stripes provide. Tigers use their body weight to knock prey to the ground and kills with a bite to the neck. They are also very good swimmers and have been known to kill prey while swimming.
Tigers essentially live solitary lives, except during mating season and when females bear young. They are usually fiercely territorial and have and mark their large home ranges.

Reproduction

Mating Season: In tropical climates, mostly from around November to April; during the winter months in temperate regions.
Gestation: 103 days.
Litter size: 3-4 cubs.
Cubs follow their mother out of the den at around 8 weeks and become independent at around 18 months of age. They leave their mothers at about 2 ½ years. Mothers guard their young from wandering males that may kill the cubs to make the female receptive to mating.

Thứ Năm, 18 tháng 8, 2016

Do cockroaches fly?

Did you hear about the flying capabilities of cockroaches? It is true. Let's see animal facts for more details


Adults of many species of cockroaches are endowed with wings. Adults of other species, and all nymphs (regardless of species) are wingless. Those adults that have wings tend to fly mainly when disturbed. Generally, they're ungainly in flight, a bit more than just falling with style. Even then, they fly better than do some kinds of birds (such as ostriches, emus, rheas and penguins). The latter, of course, 'fly' quite well underwater. No cockroach is adept beneath the waves. Lastly, some cockroaches fly quite well in 'economy', 'business' and even 'first' class aboard aircraft.

Most species of cockroach can fly if they actually want to (at least those that still have wings, some like the Madagascar hissing cockroach they always made people eat on Fear Factor have lost their wings and are flightless). 

The reason most of them don't fly is that they actually kind of suck at it. 

Cockroaches have made a very successful niche for themselves as cryptic little insects that run very quickly for cover when they are threatened. Their first instinct for escape is now to scurry, rather than take flight and fly away. 


Flying cockroaches are pretty large, slow moving, and not terrifically maneuverable. When cockroaches first evolved, this was probably sufficient to make them and the other early insects like stoneflies, mayflies and crickets masters of the air, but once aerial predators like birds started evolving, they became pretty easy pickings. 

A cockroach flying through the air now would be the target of every bird that saw it. A big, juicy meal flapping furiously to bumble its body along. 

Those cockroaches that are relatively strong fliers (like the Asian cockroach, or the Cuban cockroach) usually only fly at night, when there are fewer predators to see them. Even then, they're probably easy pickings for any bat that might be about.

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Penguin Physical Characteristics

I love to know and share amazing penguin facts and at this time, I will introduce you some basics about their physical characteristic

The shape of a penguin body is perfectly adapted to a life in the sea. As Kevin Shafer appropriately writes in his book Penguin Planet: "Fat in the middle and tapered at both ends". With this streamlined shape a penguin experiences the least possible resistance while swimming in the ocean.


All penguins are black with white undersides, and are commonly described as wearing tuxedos. This color pattern acts as camouflage when the penguin is swimming, protecting it from predators. From underneath, the white belly blends with the bright water surface, and fromabove, the black back is indistinguishable from the dark water. Penguin species can be grouped according to common characteristics. Banded penguins have black and white stripe patterns on their chests and heads. The crested penguins all have bright yellow or orange plumes on their heads. Brushtail penguins have long stiff tail feathers. The king and emperor penguins have bright yellow and orange chest and head patches, and the yellow-eyed penguin has a yellow crown. The fairy penguin's feathers are bluish. The emperor penguin is the largest, at nearly four feet tall and seventy-five pounds. 


The small fairy penguin is sixteen inches tall and about three pounds. All have solid, heavy bones that help them dive deeply into the water. They have streamlined bodies that move smoothly through the water as they pump their strong, flipperlike wings and steer using their webbed feet and tails as rudders. Penguins can hold their breath for many minutes at a time, and they frequently leap out of the water, porpoiselike, to take inmore air. On land, penguins walk with an awkward sideways waddle. Because their short legs are set back on their bodies, they stand erect and must hold out their flippers for balance. Penguins often toboggan themselves by flopping on their bellies and pushing with their flippers and feet. Penguin feathers are tiny and stiff, overlapping to form a waterproof coat. An underneath layer of down helps to trap warm air and protect the penguin from the cold water and wind. Penguins of the Antarctic region have an insulating layer of blubber. Those in temperate climates often have to cool themselves down by ruffling their feathers and holding out their flippers. They can control the flow of blood to their unfeathered areas, such as the feet and under their flippers, which helps regulate their body temperature. Penguins preen their feathers regularly, to spread waterproofing oil from a gland near the tail.

Read more: animal fun facts

Thứ Tư, 17 tháng 8, 2016

List of amazing facts about elephants


Did you know that elephants hold grudges? Learn more interesting African elephant facts now

  1. Elephants live in herds guided by oldest and wisest female member. Male elephants will leave the herd when they reach 12 years. They will form "bachelor" herds before they become old enough for a solitary life (life on their own).
  2. Elephants sleep 2-3 hours per day. They spend the rest of the time in eating. Elephants are vegetarians (eat only plants). An adult elephant needs to drink around 210 litres of water a day.
  3. It’s true that elephants aren’t fans of tiny critters.
  4. African elephants avoid eating a type of acacia tree that is home to ants because they don’t want the ants to get inside their trunks, which are full of sensitive nerve endings.
  5. Elephant's favorite food is acacia. If ants crawl on the tree, elephants will move away from the tree because ants can injure elephant's sensitive trunk.
  6. Trunk is a large and muscular fusion of elephant's nose and upper lip.
  7. Young elephants (babies) suck their trunks just like human babies suck their thumbs. This provides comfort.
  8. Elephants that live in captivity can use their trunks for the artistic purposes. They can hold the brush and paint various pictures.
  9. Elephants sleep standing up.
  10. Elephants communicate within their herds or between herds many kilometers away by stamping their feet and making sounds too low for human ears to perceive.
  11. Both female and male African elephants have tusks, but only male Asian elephants have tusks.
  12. An elephant can use its tusks to dig for ground water.
  13. Elephant's skin is one inch thick, but it can burn on the sun if it is not protected. Elephants use mud to cover their skin and protect it from the sun.
  14. Elephants communicate by producing the sounds that humans can't hear and by producing vibrations in the ground using their feet.
  15. Elephants perform "burial ceremony" when they lose a member of the herd. They gather around the body and stay in silence for a while. They will use branches to cover the body before they leave.
  16. Elephants can recognize themselves in the mirror. Just few animals beside human toddlers are able to do that.
  17. They evolved large, thin ears to help regulate their body temperature and keep cool.
  18. The elephant’s trunk is able to sense the size, shape, and temperature of an object.

Thứ Ba, 16 tháng 8, 2016

Tigers Habitat

The mysteries about one of the most amazing big cats in the world - tiger facts that always atrractive readers' attention. Let's us find out their habitats now
In many areas, the number of tigers is dwindling due to poaching and loss of habitat, and the reproduction rate of tigers is not high. A female typically produces two to three cubs every 2 to 2 1/2 years, because cubs are not fully independent until they are about 2 years old. About one-half of all cubs do not survive long enough to go out on their own. Females are ready to reproduce at 3 to 4 years old, but males do not first mate until they are 4 or 5.

  

Tigers tend to live on their own, depending on themselves for survival. They will only be seen with other tigers when they are looking for a mate or in the case of females when they are taking care of their offspring. The males have more personal territory than females when it comes to their natural habitat. It is natural for the females to have territories that overlap that of males. This is more acceptable than if another male tries to invade that same type of space.
Other animal facts as elephant facts


In order for any type of habitat to be able to successfully offer what a tiger needs to survive, there are a few things that must be in place. The area must offer some type of covering that allows the tigers to blend into the surroundings quite well. They also need to have plenty of water to access. The last thing they need is plenty of prey to choose from.

The territories that tigers call home are marked by them. They spray urine and anal glands secretions to threes, that allow them to give off very strong smells. This gives the indication to other tigers that they are invading the space of another. The females though may be drawn to the scent of the males in the area though which is how they often find each other for mating purposes.

Chủ Nhật, 14 tháng 8, 2016

Why science is important to human?

Have you ever wondered an interesting science facts question: Why science is so important to human? Let’s see how

Science is everywhere in today’s world. It is part of our daily lives, from cooking and gardening, to recycling and comprehending the daily weather report, to reading a map and using a computer. Advances in technology and science are transforming our world at an incredible pace, and our children’s future will surely be filled with leaps in technology we can only imagine. Being “science literate” will no longer be just an advantage but an absolute necessity. We can’t escape from the significance of science in our world.

If you think science doesn't matter much to you, think again. Science affects us all, every day of the year, from the moment we wake up, all day long, and through the night. Your digital alarm clock, the weather report, the asphalt you drive on, the bus you ride in, your decision to eat a baked potato instead of fries, your cell phone, the antibiotics that treat your sore throat, the clean water that comes from your faucet, and the light that you turn off at the end of the day have all been brought to you courtesy of science. The modern world would not be modern at all without the understandings and technologyenabled by science.

Science affects us all, every day of the year.


To make it clear how deeply science is interwoven with our lives, just try imagining a day without scientific progress. Just for starters, without modern science.


There would be no way to use electricity. From Ben Franklin's studies of static and lightning in the 1700s, to Alessandro Volta's first battery, to the key discovery of the relationship between electricity and magnetism, science has steadily built up our understanding of electricity, which today carries our voices over telephone lines, brings entertainment to our televisions, and keeps the lights on.


No plastic. The first completely synthetic plastic was made by a chemist in the early 1900s, and since then, chemistry has developed a wide variety of plastics suited for all sorts of jobs, from blocking bullets to making slicker dental floss.



No modern agriculture. Science has transformed the way we eat today. In the 1940s, biologists began developing high-yield varieties of corn, wheat, and rice, which, when paired with new fertilizers and pesticides developed by chemists, dramatically increased the amount of food that could be harvested from a single field, ushering in the Green Revolution. These science-based technologies triggered striking changes in agriculture, massively increasing the amount of food available to feed the world and simultaneously transforming the economic structure of agricultural practices.

For other facts of life